FENG, Fan. The Effects of Tianjin’s Openness on Economic Development in Beijing-Tianjin-Hebei Region Based on Extended Solow Model. International Journal of Economics and Financial Issues, [S. l.], v. 6, n. 3, p. 1151–1154, 2016. Disponível em: https://mail.econjournals.com/index.php/ijefi/article/view/2389. Acesso em: 2 dec. 2024.